Featured Research

from universities, journals, and other organizations

Outdoor heat increases respiratory hospitalization risk in elderly

Date:
March 8, 2013
Source:
American Thoracic Society (ATS)
Summary:
Outdoor heat is associated with a significantly increased risk of emergency hospitalization for respiratory disorders in the elderly, according to a large epidemiological study of more than 12.5 million Medicare beneficiaries.

Outdoor heat is associated with a significantly increased risk of emergency hospitalization for respiratory disorders in the elderly, according to a large epidemiological study of more than 12.5 million Medicare beneficiaries.

"While outdoor heat has been shown to increase respiratory mortality, evidence on the relationship between heat and respiratory hospitalizations has been less consistent," said lead author G. Brooke Anderson, PhD, postdoctoral fellow in the Department of Biostatistics at the Johns Hopkins Bloomberg School of Public Health. "In the largest population of the elderly yet studied, we found strong evidence that short-term exposure to outdoor heat increases the risk of hospitalization for COPD and respiratory tract infections. This relationship was consistent for men and women and across all age groups studied."

The findings were published online ahead of print publication in the American Thoracic Society's American Journal of Respiratory and Critical Care Medicine.

The study included 213 urban counties across the United States and more than 30 percent of the U.S. population aged 65 or older. Data on Medicare emergency respiratory hospitalizations were obtained for the period 1999-2008, along with measurements of weather and air pollution.

On average, respiratory hospitalizations increased 4.3 percent for each 10F increase in daily mean summer temperature. This association, which was not changed by adjustments for air pollution, age, gender or seasonal trends in hospitalization rates and temperature, was strongest on the day of exposure to heat and remained elevated the day following exposure.

The increased risk for heat-related hospitalization was similar for COPD (4.7 percent) and respiratory tract infections (4.1 percent), and tended to be higher in counties where summers are typically mild.

Each 10F increase in daily temperature translates to approximately 30 excess respiratory hospitalizations per day among the elderly in the 213 counties studied, with larger increases in temperature expected to result in more excess hospitalizations.

"Our study provides clear and consistent evidence of a link between outdoor heat and hospitalization for respiratory disease in the elderly," said senior author Dr. Roger D. Peng, associate professor in the Department of Biostatistics at the Johns Hopkins Bloomberg School of Public Health. "As the prevalence of respiratory conditions and the age of the population continue to increase and global temperatures continue to rise as a result of climate change, the risk of heat-related respiratory disease is also likely to increase."


Story Source:

The above story is based on materials provided by American Thoracic Society (ATS). Note: Materials may be edited for content and length.


Cite This Page:

American Thoracic Society (ATS). "Outdoor heat increases respiratory hospitalization risk in elderly." ScienceDaily. ScienceDaily, 8 March 2013. <www.sciencedaily.com/releases/2013/03/130308093429.htm>.
American Thoracic Society (ATS). (2013, March 8). Outdoor heat increases respiratory hospitalization risk in elderly. ScienceDaily. Retrieved July 28, 2014 from www.sciencedaily.com/releases/2013/03/130308093429.htm
American Thoracic Society (ATS). "Outdoor heat increases respiratory hospitalization risk in elderly." ScienceDaily. www.sciencedaily.com/releases/2013/03/130308093429.htm (accessed July 28, 2014).

Share This




More Health & Medicine News

Monday, July 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deadly Ebola Virus Threatens West Africa

Deadly Ebola Virus Threatens West Africa

AP (July 28, 2014) West African nations and international health organizations are working to contain the largest Ebola outbreak in history. It's one of the deadliest diseases known to man, but the CDC says it's unlikely to spread in the U.S. (July 28) Video provided by AP
Powered by NewsLook.com
$15B Deal on Vets' Health Care Reached

$15B Deal on Vets' Health Care Reached

AP (July 28, 2014) A bipartisan deal to improve veterans health care would authorize at least $15 billion in emergency spending to fix a veterans program scandalized by long patient wait times and falsified records. (July 28) Video provided by AP
Powered by NewsLook.com
Two Americans Contract Ebola in Liberia

Two Americans Contract Ebola in Liberia

Reuters - US Online Video (July 28, 2014) Two American aid workers in Liberia test positive for Ebola while working to combat the deadliest outbreak of the virus ever. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Traditional African Dishes Teach Healthy Eating

Traditional African Dishes Teach Healthy Eating

AP (July 28, 2014) Classes are being offered nationwide to encourage African Americans to learn about cooking fresh foods based on traditional African cuisine. The program is trying to combat obesity, heart disease and other ailments often linked to diet. (July 28) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins